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Details for Patent: 4,501,893

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Summary for Patent: 4,501,893

Title: 3-{6-[3-Pyrrolidino-1-(4-tolyl)prop-1-enyl]-2-pyridyl}acrylic acid and pharmaceutically acceptable salts thereof
Abstract:This disclosure describes a compound of Formula I ##STR1## (including its pharmaceutically acceptable salts and esters) which has potent antihistamine activity which is substantially free from sedative effects and which has little or no anticholinergic effects.
Inventor(s): Findlay; John W. A. (Chapel Hill, NC), Coker; Geoffrey G. (Bromley, Kent, GB2)
Application Number:06/462,872
Patent Claim Types:
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Foreign Priority and PCT Information for Patent: 4,501,893

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8203261Apr 02, 1982

International Patent Family for Patent: 4,501,893

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia1098283► subscribe
Bulgaria41821► subscribe
Germany3379654► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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